After opening your pool the chlorine level was fine but the pH was very low even after adding soda ash what should you do to raise the level?

make sure your alkalinity is correct first before adjusting the PH. you can use alkalinity up to increase this.

Or

Use baking soda. Your level of alk. should be between 80 &120; pH =7.4 - 7.8. You need to check these levels about every 20 min. & keep adjusting until levels are close to the minimums above. Check next day to see if chemistry has stabilized. Adjust as need.

k

:

1. Get your alkalinity 80-100ppm, not higher.

2. pH is 7.6-7.8, and no lower

3. There's a technique you need to use to raise/lower your pH/alkalinity, but first test your fill water, both pH and alk.

Most water companies run their pH about 7.2. If it's there, leave it alone because it will come up naturally as the pools gets used.

Go to the links below.